Leaning tool and bearing structure

Abstract

The utility model relates to a leaning tool and a bearing structure. The leaning tool comprises a main body, the main body is provided with a containing cavity, the containing cavity is used for containing filler, the main body is used for being arranged on a bearing structure, and the main body is used for being arranged around the rear side, the left side and the right side of the waist of the human body at least. The leaning tool main body is arranged around the rear side, the left side and the right side of the waist of a human body to form a 360-degree surrounding structure. When a user sits down or lies, the weight of the body is not concentrated on a certain local area of the waist any more, but is uniformly dispersed on the whole leaning tool surrounding the waist. Different from a traditional back cushion which is only supported locally, the back cushion has the advantages that the back cushion can fit the curve of the waist due to all-directional fitting, so that the pressure is eliminated in a larger contact area, the single-point pressure on the lumbar intervertebral disc and the waist muscles is prevented from being too large, and the burden is relieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of a backrest, in particular to a backrest and a bearing structure. BACKGROUND

[0002] In modern life, when a user sits down or leans down, the body weight is distributed on the waist, and the local pressure is too large, which increases the burden of the lumbar intervertebral disc and the waist muscle. Prolonged sitting and long-term pressure lead to waist pain and injury.

[0003] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present application and should not be regarded as an acknowledgment or any form of suggestion that this information forms prior art that is publicly known. SUMMARY

[0004] Therefore, it is necessary to provide a backrest and a bearing structure to solve the problem that the current back cushion or lumbar pillow only has a cushioning function.

[0005] In a first aspect, a backrest comprises:

[0006] The main body is provided with a containing cavity for setting a filler, and the main body is arranged on a bearing structure and is arranged around at least the back side, the left side and the right side of the human waist.

[0007] In one embodiment, the main body is a bending variable type, or the main body is a pre-bending fixed type.

[0008] In one embodiment, the main body comprises a first pillow body, a second pillow body and a third pillow body connected together, the first pillow body, the second pillow body and the third pillow body jointly form the containing cavity, the third pillow body extends along a first direction, the first pillow body and the second pillow body are arranged on both sides of the third pillow body along the first direction to form a support space for surrounding the waist, and the first pillow body and the second pillow body both extend along a second direction intersecting with the first direction.

[0009] In one embodiment, the first pillow body has a first pillow body arc surface on one side of the first pillow body facing the support space along the first direction, and an arc center angle Y1 of the first pillow body arc surface is 30°≤Y1≤180°.

[0010] In one embodiment, the second pillow body has a second pillow body arc surface on one side of the second pillow body facing the support space along the first direction, and an arc center angle Y2 of the second pillow body arc surface is 30°≤Y2≤180°.

[0011] In one of the embodiments, the first pillow has a first pillow slope at one end thereof away from the third pillow in the second direction, the first pillow slope is at least partially located outside the support space, and a side of the first pillow slope away from the third pillow is inclined toward the inside of the first pillow itself relative to a side of the first pillow slope close to the third pillow.

[0012] The second pillow has a second pillow slope at one end thereof away from the third pillow in the second direction, the second pillow slope is at least partially located outside the support space, and a side of the second pillow slope away from the third pillow is inclined toward the inside of the second pillow itself relative to a side of the second pillow slope close to the third pillow.

[0013] In one of the embodiments, the third pillow is curved or straight, and a trajectory of the third pillow extending in the first direction is a curve or a straight line.

[0014] In one of the embodiments, two ends of the third pillow in the first direction are respectively inclined toward the first pillow and the second pillow in the second direction relative to the middle part of the third pillow in the first direction.

[0015] In one of the embodiments, in the direction of the third pillow pointing to the support space, the projection profile edge of the third pillow has a first tangent, the projection profile edge of the first pillow and / or the second pillow has a second tangent, the first tangent and the second tangent have a distance F in the direction of the curve trajectory of the third pillow pointing to the center of itself, and the distance F satisfies: -150mm≤F≤+150mm.

[0016] In one of the embodiments, in the direction of the third pillow pointing to the support space, the projection profile edge of the third pillow has a third tangent, the projection profile edge of the first pillow and / or the second pillow has a fourth tangent, the third tangent and the fourth tangent have a distance E in the direction of the secant of the line connecting the two ends of the curve trajectory of the third pillow, and the distance E satisfies: -150mm≤E≤+150mm.

[0017] In one of the embodiments, the first pillow is convexly provided with a first close-approaching part toward the support space;

[0018] In one of the embodiments, the second pillow is convexly provided with a second close-approaching part toward the support space;

[0019] In one of the embodiments, the third pillow is convexly provided with a third close-approaching part at two ends thereof in the first direction.

[0020] In one of the embodiments, the backrest further comprises a first connecting member, the first connecting member comprises a first connecting portion and a second connecting portion, the first connecting portion is arranged on the first pillow body, the second connecting portion is arranged on the second pillow body, and the first connecting portion is used to be detachably connected to different positions of the second connecting portion so as to adjust the position of the first pillow body relative to the second pillow body.

[0021] In one of the embodiments, the backrest further comprises a second connecting member, the second connecting member is used to connect the backrest to a bearing structure.

[0022] In one of the embodiments, the main body is concavely arranged with a bayonet, the bayonet is used to be clamped on the bearing structure, the second connecting member comprises a first clamping belt and a second clamping belt, the first clamping belt and the second clamping belt are both arranged on the main body, and the first clamping belt and the second clamping belt are used to connect the main body to the bearing structure.

[0023] In one of the embodiments, the backrest further comprises a skeleton and a vibrator, the skeleton is arranged in the accommodating cavity and is used to support the filling, and the vibrator is arranged in the accommodating cavity and is connected to the skeleton.

[0024] In one of the embodiments, the vibrator comprises a first housing, a first rotary motor and an eccentric wheel, the first housing is arranged on the skeleton, the first housing has a first accommodating cavity, the first rotary motor and the eccentric wheel are both arranged in the accommodating cavity, the shaft hole of the eccentric wheel is connected to the first motor shaft of the first rotary motor, and the first rotary motor is used to drive the eccentric wheel to rotate so as to make the eccentric wheel vibrate.

[0025] In one of the embodiments, the backrest further comprises an accommodating structure, the accommodating structure is arranged in the accommodating cavity, the accommodating structure is connected to the skeleton, and the accommodating structure is used to contain the vibrator.

[0026] In one of the embodiments, the backrest further comprises a massager, the massager is arranged in the accommodating cavity and is connected to the skeleton, and the massager is arranged in a spaced manner with the vibrator.

[0027] In one of the embodiments, the massager comprises a second housing, a second rotary motor, a rocker arm, an elastic member, an extension frame, a shaft pin and a spherical roller, the second housing is connected to the framework, the second housing is provided with an opening communicating with a second accommodating cavity, the rocker arm is provided with an outer shaft hole in a third direction, the rocker arm is provided with an inner shaft hole in a fourth direction, the third direction intersects the fourth direction, the extension frame comprises an extension shaft and a support connected to each other, the elastic member is arranged in the inner shaft hole, one end of the elastic member is connected to a hole wall of the inner shaft hole, the other end of the elastic member is connected to the extension shaft, the extension shaft is arranged in the inner shaft hole and is slidingly connected to the inner shaft hole, the support is provided with a support shaft hole, the spherical roller is provided with a roller shaft hole, the shaft pin is arranged in the roller shaft hole and the support shaft hole to rotatably connect the spherical roller to the support, a second motor shaft of the second rotary motor is fixedly arranged in the outer shaft hole, the second rotary motor is used to drive the rocker arm to rotate, so that the extension frame is extended and retracted relative to the opening in the fourth direction under the action of the elastic member.

[0028] In one of the embodiments, the framework comprises a first support rod, a second support rod and a third support rod connected to each other, the third support rod extends in the first direction, the first support rod and the second support rod are arranged on two sides of the third support rod in the first direction, the first support rod and the second support rod both extend in the second direction, the first support rod is arranged in the first pillow, the second support rod is arranged in the second pillow, and the third support rod is arranged in the third pillow, the vibrator is arranged on at least one of the first support rod, the second support rod and the third support rod.

[0029] In one of the embodiments, the main body and the framework are arranged in a curved manner or in a straight line manner, and an extension track of the framework matches an extension track of the main body.

[0030] In one of the embodiments, the main body is provided with a third close-to portion at two ends in the first direction.

[0031] In one of the embodiments, the backrest further comprises a third connecting member, the third connecting member comprises a third connecting portion and a fourth connecting portion, the third connecting portion is arranged at one end of the main body in the first direction, the fourth connecting portion is arranged at the other end of the main body in the first direction, and the third connecting portion is used to detachably connect to the fourth connecting portion.

[0032] In one of the embodiments, the backrest further comprises a power supply assembly, the power supply assembly comprising a battery holder, a battery, a power cord and a connector, the battery holder being recessed on the main body, the battery being arranged in the battery holder, one end of the power cord being electrically connected with the vibrator, the other end of the power cord being electrically connected with the connector, the connector being arranged in a socket of the battery, and the battery being provided with a power switch.

[0033] In a second aspect, a bearing structure comprises the backrest of the first aspect.

[0034] The main body of the backrest described above is arranged around the back, left and right sides of the waist of a human body, forming a 360-degree embracing structure. When a user sits or leans, the body weight is no longer concentrated on a local area of the waist, but is evenly distributed to the entire backrest around the waist. Unlike the traditional backrest which only supports locally, the all-around fitting can match the curve of the waist, so that the pressure is relieved on a larger contact area, avoiding the intervertebral disc and the waist muscle from being pressed too much at a single point, and reducing the burden. The surrounding design can accurately match the natural physiological curvature of the waist, including the lordosis of the lumbar vertebrae and the kyphosis of the sacral vertebrae. Stable support helps to maintain the normal "S" shape of the spine, preventing the spine from deforming due to lack of effective support, and creating a suitable mechanical environment for the waist during long sitting, reducing the waist pain and injury caused by abnormal spine shape. The filler arranged in the accommodating cavity further enhances the cushioning performance of the backrest. The filler can dynamically deform according to the body pressure, and when the body weight is applied, the filler will be moderately compressed and rebound, absorbing the impact force and relieving the accumulated pressure during long sitting. The backrest design that closely surrounds the waist also limits unnecessary movement of the waist. Occasional twisting and turning of the body in a sitting position can easily cause uneven force on the waist. The backrest can stabilize the waist, reduce the additional pressure caused by shaking, and maintain the force on the waist in a relatively stable and balanced state. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor based on the disclosed drawings.

[0036] Figure 1 The structure diagram of the first backrest provided by the embodiments of the present application.

[0037] Figure 2 The structure diagram of the vibrator provided by the embodiments of the present application.

[0038] Figure 3 A schematic view of a first back support provided by an embodiment of the present application is shown in FIG. 1.

[0039] Figure 4 A schematic view of a second back support provided by an embodiment of the present application is shown in FIG. 2.

[0040] Figure 5 A schematic view of a structure of the second back support provided by an embodiment of the present application is shown in FIG. 3.

[0041] Figure 6 An exploded schematic view of the second back support provided by an embodiment of the present application is shown in FIG. 4.

[0042] Figure 7 A front view of the second back support provided by an embodiment of the present application is shown in FIG. 5.

[0043] Figure 8 A side view of the second back support provided by an embodiment of the present application is shown in FIG. 6.

[0044] Figure 9 A top view of the second back support provided by an embodiment of the present application is shown in FIG. 7.

[0045] Figure 10 A schematic view of a structure of a first fixing sleeve or a second fixing sleeve of a first connecting member provided by an embodiment of the present application is shown in FIG. 8.

[0046] Figure 11 A schematic view of a structure of a tightening belt of the first connecting member provided by an embodiment of the present application is shown in FIG. 9.

[0047] Figure 12 A schematic view of a structure of a second connecting member provided by an embodiment of the present application is shown in FIG. 10.

[0048] Figure 13 A schematic view of a structure of a framework of the second back support provided by an embodiment of the present application is shown in FIG. 11.

[0049] Figure 14 A schematic view of a structure of the framework, a vibrator and a massager of the second back support provided by an embodiment of the present application is shown in FIG. 12.

[0050] Figure 15 An exploded schematic view of the massager provided by an embodiment of the present application is shown in FIG. 13.

[0051] Figure 16 A schematic view of an overall structure of the second back support provided by an embodiment of the present application is shown in FIG. 14.

[0052] Figure 17 A schematic view of another structure of the second back support provided by an embodiment of the present application is shown in FIG. 15.

[0053] Figure 18 A side view of another structure of the second back support provided by an embodiment of the present application is shown in FIG. 16.

[0054] Figure 19 Another front view of the second backrest provided by the embodiments of the present application.

[0055] Figure 20 Another structural schematic view of the second backrest provided by the embodiments of the present application.

[0056] Figure 21 A structural schematic view of the third backrest provided by the embodiments of the present application.

[0057] Figure 22 A structural schematic view of the fourth backrest provided by the embodiments of the present application.

[0058] Figure 23 Fig. (a) is a side view of the fourth backrest, Fig. (b) is a top view of the fourth backrest, and Fig. (c) is a front view of the fourth backrest.

[0059] Figure 24 An internal structural schematic view of the fourth backrest provided by the embodiments of the present application.

[0060] Figure 25 A structural schematic view of the fifth backrest provided by the embodiments of the present application.

[0061] Figure 26 A schematic view of the fifth backrest provided by the embodiments of the present application placed on a bearing structure.

[0062] Figure 27 Another structural schematic view of the fifth backrest provided by the embodiments of the present application.

[0063] Figure 28 Another schematic view of the fifth backrest provided by the embodiments of the present application placed on a bearing structure.

[0064] Explanation of reference signs:

[0065] 200, bearing structure; 201, left handrail; 202, right handrail;

[0066] 100, backrest;

[0067] 1, main body; 11, first pillow body; 111, first pillow body curved surface; 112, first pillow body inclined surface; 113, second tangent line; 114, fourth tangent line; 115, first close-to portion; 12, second pillow body; 121, second pillow body curved surface; 122, second pillow body inclined surface; 123, second close-to portion; 13, third pillow body; 131, first tangent line; 132, third tangent line; 133, third close-to portion; 14, supporting space; 15, bayonet;

[0068] 2, skeleton; 21, first support rod; 22, second support rod; 23, third support rod;

[0069] 3, vibrator; 31, first housing; 32, first rotary motor; 33, eccentric wheel;

[0070] 4, first connecting member; 41, first connecting part; 42, second connecting part; 43, first fixing sleeve; 44, second fixing sleeve; 45, tension belt;

[0071] 5, second connecting member; 51, first loop; 52, second loop; 53, elastic belt; 54, first clamping belt; 55, second clamping belt;

[0072] 6, containing structure;

[0073] 7, massager; 71, second housing; 72, second rotary motor; 73, rocker arm; 731, outer shaft hole; 732, inner shaft hole; 74, elastic member; 75, extension frame; 751, extension shaft; 752, support; 7521, support shaft hole; 76, shaft pin; 77, spherical roller; 771, roller shaft hole; 78, opening; 79, flexible layer;

[0074] 8, third connecting member; 81, third connecting part; 82, fourth connecting part;

[0075] 9, power supply assembly; 91, battery holder; 92, battery; 93, power supply line; 94, connector; 95, power switch. DETAILED DESCRIPTION

[0076] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those described herein without departing from the spirit of the present application. It is therefore intended that the present application not be limited to the embodiments disclosed herein for purposes of craftsmanship.

[0077] Please refer to Figure 4 The present application provides a bearing structure 200, which can be a sofa, an office chair, a home chair, a folding chair, a recliner, a seat of public or private transportation, a bed, a cushion, a floor, etc. The bearing structure 200 comprises a backrest 100 arranged on the bearing structure 200 and used for supporting the waist and back of a human body.

[0078] In the embodiments of the present application, the first direction is the A-A direction, and the second direction is the B-B direction.

[0079] The structure of the first backrest 100 provided by the embodiments of the present application will be described in detail as follows.

[0080] Please refer to Figure 1 , Figure 1 The structure of the first backrest 100 provided by the embodiments of the present application is shown in the figure. In some embodiments, the backrest 100 comprises a main body 1, a framework 2 and a vibrator 3. The main body 1 is provided with a receiving cavity for accommodating a filler. The framework 2 is arranged in the receiving cavity and used to support the filler. The vibrator 3 is arranged in the receiving cavity and connected to the framework 2. The receiving cavity of the main body 1 and the filler therein can well adapt to the curve of the human waist under the support of the framework 2, and provide a comfortable cushioning function. The vibrator 3 is additionally arranged in the main body 1. When the vibrator 3 works, the vibration generated thereby is transmitted to the whole main body 1 through the filler, so that the backrest 100 can not only serve as a static cushioning device, but also provide a dynamic massage effect for the waist of the user, promote the blood circulation of the waist and relieve muscle fatigue, thereby increasing the function of the backrest 100.

[0081] In optional embodiments, the filler comprises soft fixing material, liquid or gas, etc. The soft fixing material can be carbon fiber low-rebound memory cotton, high-rebound sponge, latex, inflatable elastic material, silica gel, etc. In optional embodiments, the material of the main body 1 is soft polyester fiber, leakage-proof material, including leather, rubber, waterproof fabric, etc., which is used to wrap the filler and accommodate the framework 2, the vibrator 3 and other structures, so as to prevent the contents of the main body 1 from leaking out.

[0082] Please refer to Figure 2 In some embodiments, the vibrator 3 comprises a first shell 31, a first rotary motor 32 and an eccentric wheel 33, please refer to Figure 1The first shell 31 is arranged on the framework 2, and the first shell 31 has a first accommodating cavity. The first rotating motor 32 and the eccentric wheel 33 are arranged in the accommodating cavity. The shaft hole of the eccentric wheel 33 is connected to the first motor shaft of the first rotating motor 32. The first rotating motor 32 is used to drive the eccentric wheel 33 to rotate, so that the eccentric wheel 33 rotates eccentrically to generate vibration. The first shell 31 serves as an external package of the vibrator 3, which can protect the first rotating motor 32 and the eccentric wheel 33 inside from external interference. For example, during the daily use of the backrest 100, the backrest 100 may be subjected to extrusion, collision, or environmental factors such as dust and water. The first shell 31 can prevent these factors from damaging the motor and the eccentric wheel 33, and ensure the normal operation of the vibrator 3. When the first rotating motor 32 drives the eccentric wheel 33 to rotate to generate vibration, the vibration is transmitted to the first shell 31, and the vibration is effectively transmitted to the main body 1 of the backrest 100. The first rotating motor 32 is a power source for generating vibration. It drives the eccentric wheel 33 to rotate through its own rotating motion, thereby converting electrical energy into mechanical energy to generate vibration. The driving mode of the first rotating motor 32 to the eccentric wheel 33 can provide stable and continuous power output, ensuring that the vibrator 3 can work stably for a long time. The eccentric wheel 33 can generate unbalanced centrifugal force during rotation. When the shaft hole of the eccentric wheel 33 is connected to the first motor shaft of the first rotating motor 32 and rotates with it, due to the uneven distribution of its mass, periodic changes in centrifugal force will occur, which will cause the entire vibrator 3 to vibrate. The eccentric wheel 33 has a compact structure and low cost, and has high vibration transmission efficiency, which can effectively convert the rotating power of the motor into vibration and transmit it to the main body 1 of the backrest 100 through the first shell 31 and the filler.

[0083] In optional embodiments, the first shell 31 can be an insulating sealed structure, which can prevent the filler of the main body 1 from entering the first shell 31. In other optional embodiments, the first shell 31 is a non-sealed structure, i.e., the first shell 31 is provided with an opening or the like.

[0084] Please refer to Figure 1 In optional embodiments, the number of vibrators 3 can be one, two, three, four, etc. Multiple vibrators 3 can be arranged at intervals on the framework 2.

[0085] Please refer to Figure 1 and Figure 2In some embodiments, the main body 1 further comprises a containing structure 6, which is arranged in the containing cavity and connected to the framework 2, and is used to hold the vibrator 3. The containing structure 6 can be a cloth bag or a fiber bag, etc. When the containing structure 6 is a cloth bag, it can provide a relatively soft wrapping environment for the vibrator 3. When the backrest 100 is impacted by external force or slightly bumped or squeezed in daily use, the cloth bag can buffer the external force and reduce the direct impact force on the vibrator 3. The cloth bag can prevent the vibrator 3 from directly rubbing against other objects (such as the filler) inside the containing cavity. If the vibrator 3 directly contacts the filler, the shell of the vibrator 3 can be scratched in the long-term vibration process, and even the shell can be broken. As an isolation layer, the cloth bag can buffer the vibration generated by the vibrator 3 and avoid direct transmission of the vibration to the framework 2. The containing structure 6 is connected to the framework 2, which makes the vibrator 3 have a certain installation position in the containing cavity. The cloth bag can be fixed on the framework 2 by sewing, hooks or other connection methods, so as to stably place the vibrator 3 in the appropriate position. During the use of the backrest 100, especially when the user changes the placement posture of the backrest 100 or the backrest 100 itself moves, the vibrator 3 fixed in the cloth bag can remain in the original position, ensuring that the effective transmission path of the vibration does not change, and it can allow the position between the vibrator 3 and the framework 2 to be offset and corrected. In this way, the vibration generated by the vibrator 3 can be uniformly transmitted to the filler and the main body 1 of the backrest 100. From the installation point of view, placing the vibrator 3 in the containing structure 6 such as the cloth bag is relatively simple to operate. When producing the backrest 100, workers can conveniently put the vibrator 3 into the cloth bag and then fix the cloth bag on the framework 2, without the need for complex installation tools and processes. For example, compared with directly fixing the vibrator 3 on the framework 2 by screws or the like, using the cloth bag can reduce the installation time and cost. For maintenance and repair, when the vibrator 3 needs to be replaced or repaired due to failure, with the containing structure 6 of the cloth bag, the maintenance personnel can easily take out the vibrator 3 from the cloth bag. Without such a containing structure 6, the vibrator 3 can be stuck by the filler or other components and is difficult to disassemble. Moreover, the cloth bag can also prevent the vibrator 3 from losing parts during the maintenance process. As the containing structure 6, the cloth bag can absorb part of the noise generated by the vibrator 3 during work. When the eccentric wheel 33 in the vibrator 3 rotates to generate vibration, noise can be generated due to the operation of the motor, the collision of components, etc. The soft material of the cloth bag can have a certain sound insulation effect, reducing the transmission of these noises to the outside of the backrest 100 and providing a relatively quiet use environment for the user.

[0086] Please refer to Figure 1In optional embodiments, the accommodating structure 6 can be one, two, three, four, etc., and the number of accommodating structures 6 corresponds to the number of vibrators 3, and each accommodating structure 6 is used to accommodate one vibrator 3.

[0087] Referring to Figure 1 In some embodiments, the main body 1 is curved along with the framework 2, and the curved track of the framework 2 matches the curved track of the main body 1. In the embodiments of the present application, the main body 1 is curved to facilitate the contour of the human back, avoiding the situation of local compression or suspension of the waist and back, thereby effectively reducing the burden on the waist to provide support. The framework 2 is also curved to match the curvature of the main body 1, and when the vibrator 3 is working, the vibration caused by the eccentric wheel is transmitted to the filler and each part of the main body 1, so that the entire rest 100 can produce uniform massage effect. The curved design can make the vibration better act on the key parts of the human waist.

[0088] Referring to Figure 1 In some embodiments, the main body 1 protrudes a third close part 133 at both ends in the first direction. The third close part 133 is arranged at the curved end of the main body 1, and is used to protrude from the left and right sides to close to the waist and abdomen of the human body when the main body 1 is wrapped around the waist of the human body, and the arrangement of the third close part 133 can make the main body 1 produce a clamping and embracing feeling on the waist of the human body.

[0089] Referring to Figure 1 In some embodiments, the rest 100 further comprises a third connecting piece 8, the third connecting piece 8 comprises a third connecting part 81 and a fourth connecting part 82, the third connecting part 81 is arranged at one end of the main body 1 in the first direction, and the fourth connecting part 82 is arranged at the other end of the main body 1 in the first direction, and the third connecting part 81 is used for detachable connection with the fourth connecting part 82. Referring to Figure 3 The main body 1 closes to the waist of the human body, and the third connecting part 81 and the fourth connecting part 82 are connected after wrapping around the waist of the human body, which can fix the main body 1 on the waist of the human body, and when a person sits on a seat, the main body 1 provides support to the waist of the human body from the back of the waist, and the third close part 133 provides support to the waist of the human body from the left and right sides of the waist.

[0090] In optional embodiments, the third connecting part 81 can be a magic tape with a rough surface, and the fourth connecting part 82 can be a magic tape with a prickle surface. Or the third connecting part 81 can be a bandage with male buckles, and the fourth connecting part 82 can be a bandage with female buckles. Or the third connecting part 81 can be a bandage with slots, and the fourth connecting part 82 can be a bandage with plugs. Or the third connecting part 81 can be a buckle strap with buckling needles, and the fourth connecting part 82 can be a strap with multiple needle holes arranged along the length direction of the strap. The buckling needles of the third connecting part 81 can be inserted into different needle holes to connect with the fourth connecting part 82. The second connecting part 5 capable of fixing the main body 1 on the waist and back of a human body is within the protection scope of the embodiments of the present application.

[0091] Referring to Figure 5 , the structure of the second backrest 100 provided by the embodiments of the present application will be described in detail as follows:

[0092] Referring to Figure 6 , the backrest 100 includes a main body 1, a framework 2, a first connecting part 4, a second connecting part 5, a vibrator 3, a containing structure 6, a massager 7, and a power supply assembly 9.

[0093] Referring to Figure 5 , in some embodiments, the main body 1 includes a first pillow body 11, a second pillow body 12, and a third pillow body 13 connected together, and the first pillow body 11, the second pillow body 12, and the third pillow body 13 jointly form a containing cavity. The first pillow body 11, the second pillow body 12, and the third pillow body 13 can be independently arranged or communicated. The third pillow body 13 extends along a first direction, and the first pillow body 11 and the second pillow body 12 are arranged on both sides of the third pillow body 13 along the first direction to form a support space 14 for embracing a waist. The first pillow body 11 and the second pillow body 12 both extend along a second direction intersecting the first direction, and the framework 2 is arranged in at least one of the first pillow body 11, the second pillow body 12, and the third pillow body 13. In the embodiments of the present application, the first direction can be a straight direction or a curved direction. The second direction can be a straight direction or a curved direction. The first pillow body 11, the second pillow body 12, and the third pillow body 13 extend straight or curvedly. The first pillow body 11 and the second pillow body 12 are arranged on both sides of the third pillow body 13 to form the support space 14 for embracing the waist. This structure can better fit the curve of the waist of a human body and avoid excessive shaking of the waist in the left-right direction. The third pillow body 13 provides a main support force at the back of the waist, which conforms to the ergonomic principle. Thus, the first pillow body 11, the second pillow body 12, and the third pillow body 13 can simultaneously reduce the pressure on the waist of a human body from three directions.

[0094] Referring to Figure 17 , Figure 20 , and Figure 21The embodiments of the present application do not limit the specific shapes of the first pillow body 11, the second pillow body 12 and the third pillow body 13. The first pillow body 11 can be in a bar shape, a rod shape, a dumbbell shape, a curved shape or other irregular shapes. The second pillow body 12 and the third pillow body 13 can be in an ellipsoid shape, a cylindrical shape or other irregular shapes. The embodiments of the present application do not limit the specific shapes of the first pillow body 11, the second pillow body 12 and the third pillow body 13.

[0095] Referring to Figure 7 and Figure 19 In some embodiments, the first pillow body 11 has a first pillow body arc surface 111 on one side of the first pillow body 11 facing the support space 14 in the first direction, and the central angle Y1 of the first pillow body arc surface 111 is 30°≤Y1≤180°. In addition, the second pillow body 12 has a second pillow body arc surface 121 on one side of the second pillow body 12 facing the support space 14 in the first direction, and the central angle Y2 of the second pillow body arc surface 121 is 30°≤Y2≤180°. When the human waist is pressed against the first pillow body arc surface 111 and the second pillow body arc surface 121, the first pillow body arc surface 111 and the second pillow body arc surface 121 can gradually approach the human waist from the left and right sides according to the contour of the human body, thereby providing softer and more natural support for the waist and reducing the gap between the waist and the recliner 100. The first pillow body arc surface 111 and the second pillow body arc surface 121 can effectively disperse the pressure applied by the human waist. Because the pressure is distributed along the tangent direction of the arc surface, rather than concentrated at a point or a region as in a flat surface. In this way, discomfort caused by excessive local pressure can be avoided, and the muscles of the waist can be subjected to more uniform stress. For thin people, the waist is thin, and the arc surface with a smaller central angle can also fit well. For obese people, the arc surface with a larger central angle can provide sufficient wrapping range to fully support the waist from both sides.

[0096] For example, the central angle Y1 of the first pillow body arc surface 111 can be any value within the above range, such as 30°, 60°, 90°, 120°, 150°, 180°, etc. The central angle Y2 of the second pillow body arc surface 121 can be any value within the above range, such as 30°, 60°, 90°, 120°, 150°, 180°, etc.

[0097] Referring to Figure 7 and Figure 19 In optional embodiments, the cross-sectional shape of the main body 1 in the thickness direction of the main body 1 can be circular, elliptical, irregular or other shapes. In other words, the main body 1 can be bent from an ellipsoid, a cylindrical body or other shapes to form the first pillow body 11, the second pillow body 12 and the third pillow body 13.

[0098] Referring to Figure 8 and Figure 18In some embodiments, the first pillow 11 has a first pillow slope 112 at an end thereof away from the third pillow 13 in the second direction, the first pillow slope 112 is at least partially located outside the support space 14, and a side of the first pillow slope 112 away from the third pillow 13 is inclined towards the inside of the first pillow 11 relative to a side of the first pillow slope 112 close to the third pillow 13. The second pillow 12 has a second pillow slope 122 at an end thereof away from the third pillow 13 in the second direction, the second pillow slope 122 is at least partially located outside the support space 14, and a side of the second pillow slope 122 away from the third pillow 13 is inclined towards the inside of the second pillow 12 relative to a side of the second pillow slope 122 close to the third pillow 13. The first pillow slope 112 and the second pillow slope 122 can maximize the contact area between the first pillow 11 and the second pillow 12 and the back of the seat, and increase the friction between the main body 1 and the seat, so as to prevent the main body 1 from sliding off the seat or the position of the person.

[0099] Referring to Figure 8 and Figure 18 , the first pillow 11 and the first pillow slope 112 form an angle X1, and the second pillow 12 and the second pillow slope 122 form an angle X2, which satisfy X1>90° and X2>90°. For example, X1 and X2 can be 100°, 120°, 140°, 160°, etc.

[0100] Referring to Figure 9 In some embodiments, the first pillow 11 has a first close portion 115 protruding towards the inside of the support space 14, and / or the second pillow 12 has a second close portion 123 protruding towards the inside of the support space 14. The first close portion 115 and the second close portion 123 protrude from the left and right sides of the first pillow 11 and the second pillow 12 according to the contour of the human body, and gradually approach the soft waist and abdomen of the human body. When the first close portion 115 and the second close portion 123 are pressed against the waist of the human body, they can provide a more clamping and embracing feeling to the soft waist and abdomen, so that the rest aid 100 can be more tightly fixed to the waist of the human body, and the displacement of the rest aid 100 during use can be reduced. In particular, when the person moves on the seat, the rest aid 100 can also maintain a relatively stable position, and continuously provide effective support and massage to the waist.

[0101] Referring to Figure 9In optional embodiments, the first close-to-body part 115 is convexly arranged on the first pillow body curved surface 111, and the second close-to-body part 123 is convexly arranged on the second pillow body curved surface 121. The first close-to-body part 115 and the second close-to-body part 123 are matched with the first pillow body curved surface 111 and the second pillow body curved surface 121 respectively, so that the pressure is distributed along the tangent direction of the first pillow body curved surface 111 and the second pillow body curved surface 121, thereby avoiding excessive local pressure. The first pillow body curved surface 111 and the second pillow body curved surface 121 can gradually close to the human body according to the human waist curve, and the first close-to-body part 115 and the second close-to-body part 123 can form a natural transition with the first pillow body curved surface 111 and the second pillow body curved surface 121, so that the close-to-body and supporting effects are more natural and smooth, and the support points or support areas are avoided, thereby further improving the close-to-body degree and comfort.

[0102] Please refer to Figure 6 , Figure 10 and Figure 11 In some embodiments, the backrest 100 further comprises a first connecting member 4, which comprises a first connecting part 41 and a second connecting part 42. The first connecting part 41 is arranged on the first pillow body 11, and the second connecting part 42 is arranged on the second pillow body 12. The first connecting part 41 is used for detachably connecting to different positions of the second connecting part 42, so as to adjust the position of the first pillow body 11 relative to the second pillow body 12. In optional embodiments, the first connecting part 41 can be a male buckle, and the second connecting part 42 can be a female buckle. Alternatively, the first connecting part 41 can be a slot, and the second connecting part 42 can be a plug. Alternatively, the first connecting part 41 can be a buckle head of a buckle needle, and the second connecting part 42 can be a belt with a plurality of needle holes arranged at intervals along the length direction of the belt. The buckle needle of the first connecting part 41 can be inserted into different needle holes to connect with the second connecting part 42. The connecting structure capable of connecting the first connecting part 41 and the second connecting part 42 and capable of changing the connecting length of the first connecting part 41 and the second connecting part 42 is within the protection scope of the embodiments of the present application.

[0103] Please refer to Figure 6 , Figure 10 and Figure 11 In optional embodiments, the first connecting member 4 comprises a first fixing sleeve 43, a second fixing sleeve 44 and a tightening belt 45. The first fixing sleeve 43 is provided with the first connecting part 41, which is a male hidden buckle. The second fixing sleeve 44 is provided with the second connecting part 42, which is also a male hidden buckle. The tightening belt 45 is provided with a plurality of female hidden buckles. The male hidden buckles on the first connecting part 41 and the second connecting part 42 are buckled with the female hidden buckles on the tightening belt 45. By buckling the male hidden buckles on the first connecting part 41 and / or the second connecting part 42 with the female hidden buckles on the tightening belt 45 at different positions, the distance between the first fixing sleeve 43 and the second fixing sleeve 44 is changed, and the distance between the first pillow body 11 and the second pillow body 12 is adjusted.

[0104] Please refer to Figure 6 and Figure 12 In some embodiments, the backrest 100 further comprises a second connecting member 5 for connecting the backrest 100 to the bearing structure 200. The second connecting member 5 can be a Velcro, a male-female buckle, a strap, etc. In an alternative embodiment, the second connecting member 5 comprises a first loop 51, a second loop 52, and an elastic band 53, the two ends of the elastic band 53 being connected to the first loop 51 and the second loop 52 respectively, the first loop 51 being sleeved on the first pillow body 11, the second loop 52 being sleeved on the second pillow body 12, and the elastic band 53 being sleeved on the seat back. The elastic function of the elastic band 53 can fix the main body 1 to the seat back through the first loop 51 and the second loop 52.

[0105] Please refer to Figure 13 In some embodiments, the framework 2 comprises a first support rod 21, a second support rod 22, and a third support rod 23 connected together, the third support rod 23 extending along a first direction, the first support rod 21 and the second support rod 22 being respectively arranged on the two sides of the third support rod 23 along the first direction, the first support rod 21 and the second support rod 22 both extending along a second direction, the first support rod 21 being arranged in the first pillow body 11, the second support rod 22 being arranged in the second pillow body 12, and the third support rod 23 being arranged in the third pillow body 13, the first support rod 21, the second support rod 22, and the third support rod 23 being supported and attached to each other by the filling layer, and the vibrator 3 being arranged on the third support rod 23. The first support rod 21 and the second support rod 22 are respectively arranged on the two sides of the third support rod 23 along the first direction and both extend along the second direction, forming a stable support structure together with the third support rod 23. The pressure can be evenly transmitted to the three support rods through the filling layer, improving the overall support stability of the backrest 100. The three support rods are connected to each other, forming a stable frame that can effectively resist external forces from different directions, reducing the possibility of deformation of the backrest 100 during use due to external forces, maintaining the shape and height of the backrest 100, and prolonging the service life of the backrest 100.

[0106] In the embodiments of the present application, the first pillow body 11, the second pillow body 12, and the third pillow body 13 all extend along a straight line, and the first support rod 21, the second support rod 22, and the third support rod 23 also all extend along a straight line, so that the framework 2 can match the structure of the pillow body.

[0107] Please refer to Figure 9 In an alternative embodiment, the connection between the first pillow body 11 and the third pillow body 13, and the connection between the second pillow body 12 and the third pillow body 13 can be an angular connection, or, please refer to Figure 17 the connection between the first pillow body 11 and the third pillow body 13, and the connection between the second pillow body 12 and the third pillow body 13 is a chamfered or rounded transition connection.

[0108] Referring to Figure 14 In an optional embodiment, a plurality of vibrators 3 are arranged in the main body 1, and the plurality of vibrators 3 are arranged on the third supporting rod 23 at intervals. The structure of the vibrators 3 is consistent with the structure of the vibrators 3 in the first main body 1, and will not be described in detail here. Each vibrator 3 is also fixed on the third supporting rod 23 by the containing structure 6.

[0109] Referring to Figure 14 In some embodiments, the leaning tool 100 further comprises a massager 7, which is arranged in the containing cavity and connected with the framework 2, and the massager 7 is arranged at intervals with the vibrator 3. By arranging the massager 7, the function of the leaning tool 100 can be enriched.

[0110] Referring to Figure 15In some embodiments, the massager 7 comprises a second housing 71 connected to the frame 2, a second rotary motor 72, a rocker arm 73, an elastic member 74, an extension frame 75, a shaft pin 76 and a spherical roller 77 arranged in a second accommodating cavity of the second housing 71, the second housing 71 is provided with an opening 78 communicating with the second accommodating cavity, the rocker arm 73 is provided with an outer shaft hole 731 in a third direction, the rocker arm 73 is provided with an inner shaft hole 732 in a fourth direction, the third direction intersects the fourth direction, the extension frame 75 comprises an extension shaft 751 and a support 752 connected to each other, the elastic member 74 is arranged in the inner shaft hole 732, one end of the elastic member 74 is connected to a hole wall of the inner shaft hole 732, the other end of the elastic member 74 is connected to the extension shaft 751, the extension shaft 751 is arranged in the inner shaft hole 732 and is slidingly connected to the inner shaft hole 732, the support 752 is provided with a support shaft hole 7521, the spherical roller 77 is provided with a roller shaft hole 771, the shaft pin 76 is arranged in the roller shaft hole 771 and the support shaft hole 7521 to rotatably connect the spherical roller 77 to the support 752, a second motor shaft of the second rotary motor 72 is fixedly arranged in the outer shaft hole 731, the second rotary motor 72 is used to drive the rocker arm 73 to rotate, so that the extension frame 75 is extended and retracted relative to the opening 78 in the fourth direction under the action of the elastic member 74. It can be understood that when the second rotary motor 72 rotates, the rocker arm 73 will rotate due to the fixed connection between the second motor shaft and the outer shaft hole 731 of the rocker arm 73. With the rotation of the rocker arm 73, the extension shaft 751 of the extension frame 75 slides in the inner shaft hole 732 of the rocker arm 73. Since the elastic member 74 is arranged in the inner shaft hole 732 of the rocker arm 73, the extension shaft 751 will squeeze the elastic member 74 during the sliding process, so that the elastic member 74 generates elastic force. The support 752 is connected with the spherical roller 77 through the shaft pin 76, when the extension shaft 751 slides in the inner shaft hole 732 of the rocker arm 73, the spherical roller 77 will move accordingly. When the spherical roller 77 moves to the opening 78, the flexible layer 79 is squeezed, and then the filling layer which touches the waist position of the human body is squeezed, so that the filling layer is squeezed. After the filling layer is squeezed, the extension shaft 751 of the extension frame 75 is squeezed into the inner shaft hole 732 of the rocker arm 73 in the axial direction of the rocker arm 73. At this time, the elastic member 74 arranged in the inner shaft hole 732 of the rocker arm 73 is squeezed by the extension shaft 751, the reverse elastic force of the elastic member 74 is increased, and the reverse elastic force is applied to the extension shaft 751 and the spherical roller 77, and then applied to the waist of the human body, so that the waist of the human body is pushed and massaged.

[0111] The second rotary motor 72, the rocker arm 73, the elastic member 74, the extension frame 75, the shaft pin 76, and the spherical roller 77 are all arranged in the second accommodating cavity of the second shell 71, so that the structure of the massager 7 is relatively compact. This compact design can effectively utilize space and avoid the problem of excessive space occupation caused by the dispersion of various components. In the product such as the recliner 100 which has certain space limitations, the compact structure of the massager 7 can better adapt to the accommodating cavity and will not affect the placement of other components (such as the filler, the framework 2, the vibrator 3, etc.) of the recliner 100 due to the excessive volume of the massager 7. The arrangement of the elastic member 74 plays a role of buffering protection. When the spherical roller 77 contacts the human waist and is subjected to pressure, the extension shaft 751 will press the elastic member 74, and the elastic force of the elastic member 74 can buffer the impact force of the spherical roller 77 on the human body. At the same time, the elastic member 74 can also adjust the massage intensity. According to the needs of different users for massage intensity or different massage stages, the elastic member 74 can change the extension degree of the extension frame 75 through the elastic deformation of itself, thereby adjusting the pushing pressure of the spherical roller 77 on the human waist. The second shell 71 provides protection for the internal second rotary motor 72, rocker arm 73, and other components. In the daily use of the recliner 100, it may be affected by factors such as dust, moisture, or external force impact. The second shell 71 can prevent these external factors from entering the inside and damaging the motor and other precision components, ensuring that the massager 7 can work stably. During the massage process, when the human waist exerts a greater pressure on the spherical roller 77 or the recliner 100 is subjected to external force impact, the connection between the rocker arm 73 and the extension frame 75 and the elastic member 74 can play a buffering role. For example, when the user suddenly leans against the recliner 100 or changes posture, the pressure of the waist on the spherical roller 77 will instantaneously increase, at which time the extension shaft 751 of the extension frame 75 will slide in the inner shaft hole 732 of the rocker arm 73, press the elastic member 74, and the elastic member 74 will absorb part of the impact force, avoiding the spherical roller 77 from generating too intense counterforce on the waist, thereby improving the comfort of the massage. The coordinated work between the rocker arm 73, the extension frame 75, and the spherical roller 77 can provide a relatively stable massage experience. The rotary motion of the rocker arm 73 is relatively stable, and the spherical roller 77 performs massage in this stable motion state, which can avoid the occurrence of jamming or sudden changes in intensity during the massage process, making the user feel more comfortable and relaxed.

[0112] See Figure 15In some embodiments, the massager 7 further comprises a flexible layer 79, which is connected to the second housing 71 and covers the opening 78. The flexible layer 79 is used to flexibly contact the ball rollers 77. The flexible layer 79 is arranged to form a closed cavity in the massager 7. When the ball rollers 77 contact the flexible layer 79 during movement, the flexible layer 79 can buffer the massage force of the ball rollers 77. Since the mechanical structure inside the massager 7 may generate relatively hard force during movement, the flexible layer 79 acts as a soft transition medium to make the pressure of the ball rollers 77 on the human waist more gentle. The flexible layer 79 acts as a protective layer at the opening 78 to prevent external objects from directly contacting the ball rollers 77 and other internal components. During the operation of the massager 7, the ball rollers 77 will frequently move and contact the outside. If there is no flexible layer 79, the filler in the backrest 100 may be rolled into the massager 7 by the ball rollers 77, causing blockage or damage to the internal components. The flexible layer 79 can stabilize the massage action of the ball rollers 77. It can reduce the vibration and jitter generated by the ball rollers 77 during movement, making the massage action more stable on the human waist.

[0113] The embodiments of the present application do not limit the number and position of the massagers 7. For example, the number of massagers can be one, two, three, four, etc. The massagers 7 can be arranged on any one of the first pillow 11, the second pillow 12, and the third pillow 13.

[0114] Please refer to Figure 16 In an optional embodiment, a plurality of massagers 7 are arranged in the main body 1, and the plurality of massagers 7 are arranged on the first pillow 11 and the second pillow 12, and close to the first close portion 115 of the first pillow 11 and the second close portion 123 of the second pillow 12. Specifically, the massagers 7 are arranged at the first close portion 115 of the first pillow 11 and the second close portion 123 of the second pillow 12. Since the first close portion 115 and the second close portion 123 are further close to the human waist, arranging the massagers 7 at this position can improve the massage effect on the human waist.

[0115] Please refer to Figure 16 In an optional embodiment, the backrest 100 further comprises a power supply assembly 9, which comprises a battery seat 91, a battery 92, a power line 93, and a connector 94. The battery seat 91 is recessed on the third pillow 13, and the battery 92 is arranged in the battery seat 91. One end of the power line 93 is electrically connected to the first rotating motor 32 and the second rotating motor 72, respectively, and the other end of the power line 93 is electrically connected to the connector 94, which is used to be inserted into the socket of the battery 92. The battery 92 is provided with a power switch 95. By opening the power switch 95, the battery 92 supplies power to the first rotating motor 32 and the second rotating motor 72 through the power line 93.

[0116] Referring to Figure 21 The structure of the third backrest 100 provided by the embodiment of the present application will be described in detail as follows:

[0117] Referring to Figure 21 In the structure of the third backrest 100, the main body 1 also includes the first pillow body 11, the second pillow body 12 and the third pillow body 13. The third pillow body 13 is large at both ends and small in the middle. The third close-to parts 123 are respectively arranged at both ends (the two ends) of the third pillow body 13. When the third pillow body 13 is close to the bearing mechanism 200, the two ends of the third pillow body 13 are close to the bearing mechanism 200 in contact, and there is a gap between the middle of the third pillow body 13 and the bearing mechanism 200. When the third pillow body 13 is extruded by the human waist, the middle part of the third pillow body 13 is extruded and deformed, close to the bearing mechanism 200, and the gap when the human waist is not extruded is eliminated. Because the two ends of the third pillow body 13 are large, when the third pillow body 13 is extruded by the human waist, the point or surface in contact between the two ends of the third pillow body 13 and the bearing mechanism 200 serves as a support point or surface for the middle part of the third pillow body 13 extruded by the human waist, and the opposite surface of the support point or surface, i.e. the surface of the two ends of the third pillow body 13 not in contact with the bearing mechanism 200, is deformed and bent to form an arc, thereby clamping the human waist from both sides. In this way, the human waist is supported and embraced from three aspects. The structure of the third pillow body 13 being large at both ends and small in the middle is an application of the principle of a lever. The middle part of the third pillow body 13 is a force arm, the point or surface in contact between the two ends of the third pillow body 13 and the bearing mechanism 200 is a fulcrum, and the two ends of the third pillow body 13 are resistance arms. The distance between the middle part of the third pillow body 13 and the bearing mechanism 200 is approximately the displacement distance of the power arm. Because the third pillow body 13 is part of the main body 1 and contains a filling layer, the material of the filling layer is not a rigid connection structure, and the displacement distance of the power arm cannot be directly converted into the height of the opposite surface of the point or surface in contact between the two ends of the third pillow body 13 and the bearing mechanism 200. Instead, it will pull and bend the two ends of the third pillow body 13, so that the surface of the two ends of the third pillow body 13 in contact with the human waist is deformed and bent along the contour of the human waist, achieving the effect of embracing the human waist from three sides.

[0118] The structure of the fourth backrest 100 provided by the embodiment of the present application will be described in detail as follows:

[0119] Referring to Figure 22 In the structure of the fourth backrest 100, the main body 1 also includes the first pillow body 11, the second pillow body 12 and the third pillow body 13.

[0120] In some embodiments, the third pillow body 13 is bent, and the trajectory of the third pillow body 13 extending in the first direction is a curve. Thus, the curved structure surface of the third pillow body 13 is a curved surface of the third pillow body 13, and the curved structure of the third pillow body 13 facilitates the curved surface of the third pillow body 13 to be close to the contour of the human back and provide support.

[0121] In the embodiments of the present application, the second pillow body 12 and the third pillow body 13 extend along the second direction, which is a straight direction.

[0122] Please refer to Figure 22 In some embodiments, the third pillow body 13 is provided with a third close-to-body part 133 at both ends in the first direction. The third close-to-body part 133 can be arranged at both ends of the third pillow body 13. The third close-to-body part 133 is connected to the third pillow body 13 as a whole. Since the third pillow body 13 is a curved structure, the third close-to-body part 133 is arranged at the curved ends of the third pillow body 13, and can be wrapped around the two sides of the human waist, protruding from the left and right sides to closely contact the soft waist and abdomen of the human body; the third close-to-body part 133 can provide a clamping and hugging feeling to the soft waist and abdomen when the human waist is pressed.

[0123] Please refer to Figure 23 (a) In some embodiments, the two ends of the third pillow body 13 in the first direction are inclined in the second direction towards the first pillow body 11 and the second pillow body 12, respectively, relative to the middle part of the third pillow body 13 in the first direction. This can make the position of the end of the third pillow body 13 on the third pillow body 13 lower than the middle part of the third pillow body 13. The third pillow body 13 is provided with a central plane C, and the angle between the central plane C and the first pillow body 11 and the second pillow body 12 is Z, which satisfies: Z≤90°. For example, Z can be any value within the above range, such as 30°, 40°, 50°, 60°, 70°, etc.

[0124] Please refer to Figure 23 (b) In some embodiments, in the direction of the third pillow body 13 pointing to the support space 14, the projection contour edge of the third pillow body 13 has a first tangent line 131, and the projection contour edge of the first pillow body 11 and / or the second pillow body 12 has a second tangent line 113. The first tangent line 131 and the second tangent line 113 have a distance F in the direction of the curve trajectory of the third pillow body 13 pointing to its own center, which satisfies: -150mm≤F≤+150mm; and / or, please refer to Figure 23 (c) In the direction of the third pillow body 13 pointing to the support space 14, the projection contour edge of the third pillow body 13 has a third tangent line 132, and the projection contour edge of the first pillow body 11 and / or the second pillow body 12 has a fourth tangent line 114. The third tangent line 132 and the fourth tangent line 114 have a distance E in the direction of the secant of the line connecting the two ends of the curve trajectory of the third pillow body 13, which satisfies: -150mm≤E≤+150mm. The settings of E and F can make the first pillow body 11 and the second pillow body 12 more closely contact the human waist.

[0125] For example, E can be any value within the above range, such as -150 mm, -100 mm, -50 mm, 0 mm, 50 mm, 100 mm, 150 mm, etc., and F can be any value within the above range, such as -150 mm, -100 mm, -50 mm, 0 mm, 50 mm, 100 mm, 150 mm, etc.

[0126] Referring to Figure 24 In the fourth structure of the leaning tool 100, the framework 2 also comprises the first support rod 21, the second support rod 22, and the third support rod 23. The third support rod 23 is curved, and the trajectory of the third support rod 23 extending in the first direction is a curve matching the curved trajectory of the third pillow 13.

[0127] In the fourth structure of the leaning tool 100, only the vibrator 3 is arranged in the accommodating cavity of the main body 1. The plurality of vibrators 3 are arranged on the third support rod 23 in the third pillow 13 at intervals. The plurality of vibrators 3 are contained and fixed on the third support rod 23 by cloth bags. The structure of the vibrator 3 in the embodiment of the present application is the same as that described above, and will not be described in detail here.

[0128] Referring to Figure 22 In the fourth structure of the leaning tool 100, the power supply assembly 9 is arranged on the first pillow 11, i.e., the power supply and the battery seat 9 are arranged on the first pillow 11. The embodiment of the present application does not limit the specific arrangement position of the power supply assembly, which can be arranged at any position on the main body 1 according to actual needs.

[0129] In an optional embodiment, the main body 1 can be of a bendable variable type or a pre-bent fixed type. It can be understood that the "bendable variable type" refers to that the main body 1 originally has a straight bar shape but has a bending characteristic and can form a surrounding structure as needed, and the structure is flexible and variable. The "pre-bent fixed type" refers to that the main body 1 is designed to be curved at the beginning and directly presents a surrounding structure.

[0130] The fifth structure of the leaning tool 100 provided by the embodiment of the present application will be described below:

[0131] Referring to Figure 25 and Figure 27 , Figure 25 and Figure 27 The fifth structure of the leaning tool 100 provided by the embodiment of the present application is shown. The main body 1 of the fifth leaning tool 100 is of a bendable variable type and can be arranged around the back side, the left side, and the right side of the waist of the user after being bent by the user.

[0132] In some embodiments, the main body 1 is concavely provided with a clamping opening 15, the clamping opening 15 is used for clamping on the bearing structure 200, the second connecting member 5 comprises a first clamping band 54 and a second clamping band 55, the first clamping band 54 and the second clamping band 55 are both provided on the main body 1, and the first clamping band 54 and the second clamping band 55 are used for connecting the main body 1 on the bearing structure 200. The clamping opening 15 provided on the main body 1 can increase the contact area of the main body 1 and the bearing structure 200, and improve the connection stability of the main body 1 fixed on the bearing structure 200.

[0133] In an optional embodiment, the bearing structure 200 is a seat, the seat has a left armrest 201 and a right armrest 202, the main body 1 is provided with the clamping opening 15 at both ends along the length direction of the main body 1, and the clamping opening 15 is clamped on the left armrest 201 and the right armrest 202 respectively. The first clamping band 54 and the second clamping band 55 are arranged at the clamping opening 15, and can connect the two ends of the main body 1 with the left armrest 201 and the right armrest 202.

[0134] In an optional embodiment, the first clamping band 54 and the second clamping band 55 can be directly tied on the left armrest 201 or the right armrest 202. Alternatively, a Velcro rough surface is arranged on the first clamping band 54, and a Velcro thorn surface is arranged on the second clamping band 55, so that the first clamping band 54 and the second clamping band 55 are bonded. Alternatively, a male buckle is arranged on the first clamping band 54, and a female buckle is arranged on the second clamping band 55, so that the first clamping band 54 and the second clamping band 55 are buckled. The application does not limit the connection mode of the first clamping band 54 and the second clamping band 55, and any mode that can realize the connection of the first clamping band 54 and the second clamping band 55 is within the protection scope of the application.

[0135] In an optional embodiment, the clamping opening 15 can be a surrounding or semi-surrounding groove, notch, ridge or step, which can be used to limit the setting position of the main body 1 on the bearing structure 200.

[0136] In an optional embodiment, referring to Figure 25 , the clamping opening 15 can be arranged on the left and right sides of the main body 1. Referring to Figure 27 , the clamping opening 15 can be arranged on the bottom of the main body 1. The application does not limit the specific arrangement position of the clamping opening 15, and any position that can be clamped with the bearing structure 200 is within the protection scope of the application.

[0137] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0138] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0139] In this application, unless otherwise explicitly specified and limited, if there are terms such as "installation", "connection", "connection", "fixation" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0140] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0141] It is to be noted that when an element such as a layer, film, or region is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. It will be understood that, when an element or layer is referred to as being "connected" to or "coupled" to another element or layer, it can be directly connected or coupled or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0142] Various technical features described in the above embodiments can be combined in any manner, and for the sake of brevity, not all possible combinations are described. It will be apparent to those skilled in the art, however, that the scope of the disclosure includes all such possible combinations.

[0143] The above-described embodiments are merely illustrative for the present application and are not to be used in a limiting manner. It should be noted that, for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these modifications and improvements should be considered within the scope of the present application. Therefore, the patent protection scope of the present application should be defined by the claims.

Claims

1. A rest, characterized in that The main body is provided with a containing cavity for arranging a filling material, and is arranged on a bearing structure and surrounds at least the back, left and right sides of a waist of a human body; The main body comprises a first pillow body, a second pillow body and a third pillow body connected together, the first pillow body, the second pillow body and the third pillow body jointly form the containing cavity, the third pillow body extends along a first direction, the first pillow body and the second pillow body are arranged on two sides of the third pillow body along the first direction to form a supporting space for surrounding the waist, the first pillow body and the second pillow body both extend along a second direction intersecting with the first direction; The first pillow body has a first pillow body arc surface on one side of the first pillow body along the first direction towards the supporting space, and an arc center angle Y1 of the first pillow body arc surface satisfies 30°≤Y1≤180°; And / or, the second pillow body has a second pillow body arc surface on one side of the second pillow body along the first direction towards the supporting space, and an arc center angle Y2 of the second pillow body arc surface satisfies 30°≤Y2≤180°.

2. The harness of claim 1, wherein The main body is of a bending variable type or a pre-bending fixed type.

3. The rest according to claim 1, characterized in that The first pillow body has a first pillow body bevel on one end of the first pillow body along the second direction away from the third pillow body, the first pillow body bevel is at least partially located outside the supporting space, and one side of the first pillow body bevel away from the third pillow body is inclined towards the inside of the first pillow body relative to one side of the first pillow body bevel close to the third pillow body; and / or, The second pillow body has a second pillow body bevel on one end of the second pillow body along the second direction away from the third pillow body, the second pillow body bevel is at least partially located outside the supporting space, and one side of the second pillow body bevel away from the third pillow body is inclined towards the inside of the second pillow body relative to one side of the second pillow body bevel close to the third pillow body.

4. The rest according to claim 1, characterized in that The third pillow body is arranged in a bending manner or a straight line manner, and a trajectory of the third pillow body extending along the first direction is a curve or a straight line.

5. The rest according to claim 4, characterized in that Two ends of the third pillow body along the first direction are inclined towards the first pillow body and the second pillow body along the second direction respectively relative to the middle part of the third pillow body along the first direction.

6. The rest according to claim 4, characterized in that In the direction of the third pillow body pointing to the supporting space, a projection contour edge of the third pillow body has a first tangent, a projection contour edge of the first pillow body and / or the second pillow body has a second tangent, the first tangent and the second tangent have a distance F in the direction of the center of the curve trajectory of the third pillow body pointing to itself, and the distance F satisfies -150mm≤F≤+150mm; And / or, in the direction of the third pillow body pointing to the supporting space, a projection contour edge of the third pillow body has a third tangent, a projection contour edge of the first pillow body and / or the second pillow body has a fourth tangent, the third tangent and the fourth tangent have a distance E in the direction of the secant of the line connecting the two ends of the curve trajectory of the third pillow body extending along the first direction, and the distance E satisfies -150mm≤E≤+150mm.

7. The rest according to claim 1, characterized in that The first pillow body is provided with a first close-to part inwardly protruding towards the supporting space; And / or, the second pillow body is inwardly provided with a second close-to portion towards the support space; And / or, the third pillow body is outwardly provided with a third close-to portion at both ends along the first direction.

8. The rest according to claim 1, characterized in that The backrest further comprises a first connecting member, the first connecting member comprises a first connecting portion and a second connecting portion, the first connecting portion is arranged on the first pillow body, the second connecting portion is arranged on the second pillow body, and the first connecting portion is used for detachably connecting to different positions of the second connecting portion to adjust the position of the first pillow body relative to the second pillow body.

9. The rest according to claim 1, characterized in that The backrest further comprises a second connecting member, the second connecting member is used for connecting the backrest to a bearing structure.

10. The rest according to claim 9, characterized in that The main body is concavely provided with a bayonet, the bayonet is used for clamping on the bearing structure, the second connecting member comprises a first clamping belt and a second clamping belt, the first clamping belt and the second clamping belt are both arranged on the main body, and the first clamping belt and the second clamping belt are used for connecting the main body to the bearing structure.

11. The rest according to claim 1, characterized in that The backrest further comprises a skeleton and a vibrator, the skeleton is arranged in the accommodating cavity and is used for supporting the filler, and the vibrator is arranged in the accommodating cavity and is connected to the skeleton.

12. The rest according to claim 11, characterized in that The vibrator comprises a first housing, a first rotary motor and an eccentric wheel, the first housing is arranged on the skeleton, the first housing has a first accommodating cavity, the first rotary motor and the eccentric wheel are both arranged in the accommodating cavity, a shaft hole of the eccentric wheel is connected to a first motor shaft of the first rotary motor, and the first rotary motor is used for driving the eccentric wheel to rotate to make the eccentric wheel vibrate.

13. The rest according to claim 11, characterized in that The backrest further comprises an accommodating structure, the accommodating structure is arranged in the accommodating cavity, the accommodating structure is connected to the skeleton, and the accommodating structure is used for containing the vibrator.

14. The rest according to claim 11, characterized in that The backrest further comprises a massager, the massager is arranged in the accommodating cavity and is connected to the skeleton, and the massager is arranged in a spaced manner with the vibrator.

15. The rest according to claim 14, characterized in that The massager comprises a second housing, a second rotary motor, a rocker arm, an elastic member, an extension frame, a shaft pin and a spherical roller, the second housing is connected to the skeleton, the second housing is provided with an opening in communication with a second accommodating cavity of the second housing, the rocker arm is outwardly provided with an outer shaft hole along a third direction, the rocker arm is inwardly provided with an inner shaft hole along a fourth direction, the third direction intersects the fourth direction, the extension frame comprises an extension shaft and a support connected to each other, the elastic member is arranged in the inner shaft hole, one end of the elastic member is connected to a hole wall of the inner shaft hole, and the other end of the elastic member is connected to the extension shaft, the extension shaft is arranged in the inner shaft hole and is slidingly connected to the inner shaft hole, the support is provided with a support shaft hole, the spherical roller is provided with a roller shaft hole, the shaft pin is arranged in the roller shaft hole and the support shaft hole to make the spherical roller rotatably connected to the support, a second motor shaft of the second rotary motor is fixedly arranged in the outer shaft hole, and the second rotary motor is used for driving the rocker arm to rotate to make the extension frame extend and contract along the fourth direction relative to the opening under the action of the elastic member.

16. The rest according to claim 11, characterized in that The skeleton comprises a first support rod, a second support rod and a third support rod connected together, the third support rod extends along the first direction, the first support rod and the second support rod are respectively arranged on two sides of the third support rod along the first direction, the first support rod and the second support rod both extend along the second direction, the first support rod, the second support rod and the third support rod support the filler, and the vibrator is arranged on at least one of the first support rod, the second support rod and the third support rod.

17. The rest according to claim 11, characterized in that The main body and the skeleton are arranged in a curved manner or a straight manner, and an extension track of the skeleton matches an extension track of the main body.

18. The rest according to any one of claims 1 to 17, characterized in that The main body is provided with a third close-to-body part at two ends along a length direction of the main body.

19. The rest according to any one of claims 1 to 17, characterized in that The backrest further comprises a third connecting member, the third connecting member comprises a third connecting part and a fourth connecting part, the third connecting part is arranged at one end of the main body along the first direction, the fourth connecting part is arranged at the other end of the main body along the first direction, and the third connecting part is used for detachably connecting to the fourth connecting part.

20. The rest according to claim 11, characterized in that The backrest further comprises a power supply assembly, the power supply assembly comprises a battery holder, a battery, a power line and a connector, the battery holder is concavely arranged on the main body, the battery is arranged in the battery holder, one end of the power line is electrically connected to the vibrator, the other end of the power line is electrically connected to the connector, the connector is used for being inserted into a socket of the battery, and the battery is provided with a power switch.

21. A load bearing structure, characterized by The bearing structure comprises the backrest as claimed in any one of claims 1 to 20.

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